CN110071164A - A kind of display base plate and its brightness adjusting method, display device - Google Patents
A kind of display base plate and its brightness adjusting method, display device Download PDFInfo
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- CN110071164A CN110071164A CN201910376707.5A CN201910376707A CN110071164A CN 110071164 A CN110071164 A CN 110071164A CN 201910376707 A CN201910376707 A CN 201910376707A CN 110071164 A CN110071164 A CN 110071164A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
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Abstract
The invention discloses a kind of display base plate and its brightness adjusting methods, display device；The display base plate includes: underlay substrate, and the multiple pixel units being set on the underlay substrate；The display base plate further include: first detection unit, the first detection unit have multiple and be all set in the effective display area of the display base plate；Each first detection unit is correspondingly arranged at least one the multiple pixel unit, for detecting the environmental light intensity of the corresponding pixel unit；Processing unit for generating first control signal according to the corresponding environmental light intensity of the multiple pixel unit, and adjusts the display brightness of the multiple pixel unit according to the first control signal.The present invention carries out the brightness regulation closed based on environment for the problem that each pixel unit, solves display device brightness disproportionation, promotes display effect.
Description
Technical field
The present invention relates to field of display technology, a kind of display base plate and its brightness adjusting method, display device are particularly related to.
Background technique
Currently, various types of display devices have been widely applied in every field.Wherein, display brightness is for aobvious
The display effect of showing device has important influence, therefore some existing display devices have brightness adjustment function.However, existing
Can the display device of adjust automatically brightness generally use optical sensor to detect environment light, number of sensors has in display device
Limit, and most surroundings for being located at display device, the environment light being only able to detect around sensor can not be fine to display device
Each region, which results in the central areas of display device and peripheral regions brightness disproportionation problem, influence display effect.
Summary of the invention
In view of this, it is an object of the invention to propose a kind of display base plate and its brightness adjusting method, display device,
For the problem that pixel unit carries out the brightness regulation closed based on environment in effective display area, display device brightness disproportionation is solved,
Promote display effect.
Based on above-mentioned purpose, the present invention provides a kind of display base plates, comprising: underlay substrate, and it is set to the lining
Multiple pixel units on substrate；The display base plate further include:
First detection unit, the first detection unit have effective display area that is multiple and being all set in the display base plate
It is interior；Each first detection unit is correspondingly arranged at least one the multiple pixel unit, for detecting correspondence
The pixel unit environmental light intensity；
Processing unit is believed for generating the first control according to the corresponding environmental light intensity of the multiple pixel unit
Number, and adjust according to the first control signal display brightness of the multiple pixel unit.
In some embodiments, the first detection unit includes: and stacks gradually to set far from the underlay substrate direction
First electrode layer, the first PIN semiconductor layer and the second electrode lay set；The pixel unit includes: thin film transistor (TFT)；Described
One electrode layer is connected with the source-drain electrode of the thin film transistor (TFT), and the second electrode lay is connected with bias voltage control line；The bias
Control line to the first PIN semiconductor layer for being biased.
In some embodiments, the first detection unit and the thin film transistor (TFT) on the underlay substrate just
Projection is at least partly overlapped.
In some embodiments, the first detection unit and the thin film transistor (TFT) on the underlay substrate just
Projection is completely coincident.
In some embodiments, the first detection unit further include: only for the grating of visible transmission；The grating
Side of the second electrode lay far from the underlay substrate is set.
In some embodiments, the grating is sub-wave length metal grating.
In some embodiments, multiple first detection units are arranged in a one-to-one correspondence with multiple pixel units.
In some embodiments, the display base plate further include: be arranged in the redundant sub-pixels area of the display base plate
Second detection unit, the second detection unit is used to detect the integrated environment light intensity of the display base plate；
The processing unit is also used to: during display, second control signal is generated according to the integrated environment light intensity,
And the brightness of the multiple pixel unit is adjusted according to the second control signal.
In some embodiments, the second detection unit includes: and stacks gradually to set far from the underlay substrate direction
Third electrode layer, the 2nd PIN semiconductor layer and the 4th electrode layer set；4th electrode layer and the third electrode interlayer quilt
It is biased.
On the other hand, the present invention also provides a kind of display devices, comprising: display base plate described in any one as above.
In another aspect, the present invention also provides a kind of brightness adjusting method of display base plate described in any one as above,
Include:
It is detected respectively by multiple first detection units and each states the corresponding pixel unit of first detection unit
Environmental light intensity；
First control signal is generated according to the environmental light intensity by the processing unit, and is believed according to first control
The brightness of number the multiple pixel unit of adjustment.
From the above it can be seen that display base plate provided by the invention and its brightness adjusting method, display device, pass through
The environmental light intensity of the corresponding detection pixel unit of the first detection unit being arranged in effective display area, and it is single based on the first detection
The environmental light intensity that member detection obtains generates first control signal, when the display for adjusting pixel unit according to the first control signal is bright
After degree, can enable the display brightness of pixel unit with its locating for luminous environment match, it can be achieved that in varying environment
The display picture for being suitble to viewing can be shown under light, improves the brightness homogeneity of display device, and then reaches preferably aobvious
Show effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the first detection unit in the embodiment of the present invention；
Fig. 2 is the equivalent structure figure of the first PIN semiconductor layer in the embodiment of the present invention；
Fig. 3 is that relation schematic diagram is arranged in first detection unit and thin film transistor (TFT) in the embodiment of the present invention；
Fig. 4 is the display area schematic diagram of the display base plate of the embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
It should be noted that all statements for using " first " and " second " are for differentiation two in the embodiment of the present invention
The non-equal entity of a same names or non-equal parameter, it is seen that " first " " second " only for the convenience of statement, does not answer
It is interpreted as the restriction to the embodiment of the present invention, subsequent embodiment no longer illustrates this one by one.
The embodiment of the invention provides a kind of display base plates comprising: underlay substrate, and be set on underlay substrate
Pixel unit.Pixel unit has multiple, and multiple pixel units are arranged in array in underlay substrate, to constitute having for display base plate
It imitates in viewing area (area Ative Area, AA), realizes image display function.
The display base plate of the present embodiment further include: first detection unit and processing unit.
First detection unit is provided with multiple and is respectively positioned in the effective display area of display base plate.For each the first inspection
Unit is surveyed, is correspondingly arranged at least one pixel unit.First detection unit has the function of light detection, is able to detect and obtains it
Environmental light intensity under locating luminous environment；Corresponding relationship based on first detection unit and pixel unit, it is above-mentioned detected
Environmental light intensity is the environmental light intensity corresponded under luminous environment locating at least one pixel unit corresponding with first detection unit.
It include several numbers in every group for example, multiple pixel units of array arrangement can be divided into multiple and different groups
The pixel unit of amount in each group of location, is correspondingly arranged a first detection unit, then the first detection unit detects
The environmental light intensity of acquisition is the environmental light intensity under luminous environment locating for this group of pixel unit.Wherein, multiple pixel units are divided into
When multiple and different groups, the quantity for the pixel unit that every group of pixel unit includes and every group of corresponding first detection unit
Be arranged position can according to specific application environment and need and flexible setting.Specifically, first detection unit can select light
The common optoelectronic sensor such as electric diode, photo resistance.
Processing unit and first detection unit cooperating, environmental light intensity for being detected to first detection unit into
Row is handled and accordingly control pixel unit is shown.Specifically, processing unit first receives what first detection unit detected
Then environmental light intensity generates first control signal according to the environmental light intensity, further acts on picture by the first control signal
Plain unit, to adjust the display brightness of pixel unit.Wherein, the specific of first control signal is generated accordingly by environmental light intensity
Embodiment (Electric signal processing program or electric signal processing circuit) can be achieved by the prior art, and not make in the present embodiment specific
It limits.
It should be noted that the display base plate of the present embodiment can be applied to common lcd display device or oled display dress
It sets.When being applied to lcd display device, only first control signal need to be acted on into corresponding driving electrodes through the processing unit,
To change the aperture opening ratio of pixel unit, brightness regulation is realized.It, only need to be by first control signal when being applied to oled display device
Oled pixel unit is applied to as driving signal to adjust its display brightness.
As it can be seen that in the present embodiment, passing through the corresponding detection pixel of the first detection unit being arranged in effective display area
The environmental light intensity of unit, and the environmental light intensity detected based on first detection unit generates first control signal, when basis should
First control signal adjust pixel unit display brightness after, can enable the display brightness of pixel unit with its locating for
Luminous environment match, it can be achieved that under varying environment light can show be suitble to viewing display picture, improve display dress
The brightness homogeneity set, and then reach preferable display effect.
Preferably, multiple first detection units and multiple pixel units can also be arranged in a one-to-one correspondence, i.e., first
Detection unit is identical as the quantity of pixel unit, and each pixel unit is correspondingly arranged on a first detection unit.It is based on
First detection unit and the one-to-one set-up mode of pixel unit, each first detection unit, which can detect, obtains each picture
The corresponding environmental light intensity of plain unit enables to the compensation of the adjusting to environment light to be accurate to each pixel unit, maximum journey in this way
Degree ensure that the brightness of display device is uniform, further improve display effect.In subsequent embodiment, to realize more preferably
Technical effect, based on the embodiment that multiple first detection units and multiple pixel units are arranged in a one-to-one correspondence further
Illustrate each specific embodiment of the application.It should be noted that multiple first detection units and multiple pixel units one
One is correspondingly arranged only one of optional embodiment, and the quantity and corresponded manner of first detection unit and pixel unit can
With the flexible choice according to the condition in specific implementation process.
As an optional embodiment, with reference to Fig. 1, the first detection unit 2 includes: far from 1 side of underlay substrate
To first electrode layer 201, the first PIN semiconductor layer 202 and the second electrode lay 203 being cascading；It wherein, is realization light
Transmission, the second electrode lay 203 selects transparent metal material, for example tin indium oxide (ITO).With reference to Fig. 2, partly led for the first PIN
The equivalent structure figure of body layer 202 comprising: the N-type half being cascading far from underlay substrate 1 (being not shown in Fig. 2) direction
Conductor layer 2021, intrinsic layer 2022 and p type semiconductor layer 2023.When the first PIN semiconductor layer 202 is applied bias, environment
Illumination is absorbed after being mapped to the first PIN semiconductor layer 202, and intrinsic layer 2022 generates photo-excited electron, and electronics unidirectionally moves (can not
Pass through p type semiconductor layer 2023) it is flowed out by n type semiconductor layer 2021, electric signal is generated, i.e. detection obtains the environment light
By force.When voltage is not added in the first PIN semiconductor layer 202, then the first PIN semiconductor layer 202 is not turned on.
Display base plate in the present embodiment is applied to oled display device, then the pixel unit of the present embodiment is oled pixel
Unit.In the present embodiment, the pixel unit includes: thin film transistor (TFT) 3 (TFT) and oled unit 4.Wherein, oled unit 4
As display, and thin film transistor (TFT) 3 is used as the control switch of oled unit 4.In the present embodiment, the first PIN semiconductor layer 202 with
Thin film transistor (TFT) 3 is connected；Thin film transistor (TFT) 3 includes: source-drain electrode 301, grid 302 and active layer 303.Specifically, first electrode
Layer 201 is connected with the source-drain electrode 301 of the thin film transistor (TFT) 3, and the second electrode lay 203 is connected with bias voltage control line 5.Pass through bias
Control line 5 controls the working condition of first detection unit 2, when needing first detection unit 2 to work, is led to by bias voltage control line 5
The second electrode lay 203 is crossed to be biased to the first PIN semiconductor layer 202；In structure, bias voltage control line 5 be can be set aobvious
Show in any metal routing layer of substrate.
It should be noted that in order to it is clearer show first detection unit 2 self structure and with thin film transistor (TFT) 3
Connection relationship, content shown in FIG. 1 simplified, that is, illustrates only a pixel unit and its corresponding first detection is single
Member 2.To those skilled in the art, according to Fig. 1 and the literature record of the present embodiment, it should can be clearly understood from and know
Know the practical structures of the display base plate of the present embodiment.
In the present embodiment, the first PIN semiconductor layer 202 in first detection unit 2 and the film in pixel unit are brilliant
Body pipe 3 is connected, i.e., first detection unit 2 and pixel unit share a thin film transistor (TFT) 3.Based on this, with reference to Fig. 1 and Fig. 2, originally
The specific working mode of the first detection unit 2 of embodiment are as follows:
When non-display, applied partially by the second electrode lay 203 to the first PIN semiconductor layer 202 from bias voltage control line 5
Pressure, ambient lighting are absorbed after being mapped to the first PIN semiconductor layer 202, and intrinsic layer 2022 generates photo-excited electron, and electronics unidirectionally moves
It is dynamic to be flowed out by n type semiconductor layer 2021, obtain the electric signal of corresponding environmental light intensity；Thin film transistor (TFT) 3 is connected, corresponding environmental light intensity
The Data line transmission that is connected by thin film transistor (TFT) 3 of electric signal, the reading circuit (ROIC) for including by processing unit sequentially reads
The electric signal for taking out the correspondence environmental light intensity of each pixel unit turns in the amplifier and analog/digital for including by processing unit
It changes ADC and is converted into digital signal, final process obtains first control signal and acts on pixel unit, realizes and is directed to each pixel list
Member carries out the brightness regulation closed based on environment.
In display, voltage is not added in the first PIN semiconductor layer 202, and the first PIN semiconductor layer 202 is not turned on.Film crystal
(electric current will not flow to p type semiconductor layer 2023 from n type semiconductor layer 2021 at this time) is connected in pipe 3, the cathode 401 of oled unit 4
It is powered, after the electronics inspired reaches organic luminous layer 403 by electron transfer layer 402, while anode 405 is powered, generation
Hole reaches organic luminous layer 403 by hole transmission layer 404, and under the action of electrons and holes, organic luminous layer 403 is sent out
Light realizes that image is shown.During display, the first control signal that each pixel unit is based on first detection unit 2 is adjusted
Display brightness.
As it can be seen that the display base plate of the present embodiment monitors environmental light intensity by first detection unit 2, and aobvious when non-display
Each pixel unit is acted on by the first control signal that first detection unit 2 generates when showing, realizes and is directed to each pixel list
Member carries out the brightness regulation closed based on environment, solves the problems, such as brightness disproportionation, promotes display effect.In addition, the present embodiment is aobvious
Show in substrate, first detection unit 2 and pixel unit share thin film transistor (TFT) 3 existing in a pixel unit, circuit structure
It is upper relatively simple, it not will increase excessive circuit production process, be conducive to the control of manufacturing cost.
As an optional embodiment, with reference to Fig. 1, first detection unit 2 further include: only for the grating of visible transmission
204.Grating 204 is arranged in side of the second electrode lay 203 far from underlay substrate 1, i.e., environment light is partly led being irradiated to the first PIN
Before body layer 202, grating 204 can be first passed through.Grating 204 has the filtering function of black light, and ambient lighting is mapped to grating 204
Afterwards, infrared/ultraviolet equal black lights can be blocked, it is seen that light can then transmit, and be irradiated to the first PIN semiconductor layer 202 in turn.
The setting of grating 204 in through this embodiment can effectively avoid the black light in environment light single for the first detection
The injury and interference of member 2 and thin film transistor (TFT) 3 extend first detection unit 2 and 3 service life of thin film transistor (TFT), and guarantee the
The accuracy of the environmental light intensity detection of one detection unit 2.The concrete type and structure type of grating 204 can be according to specific realities
It applies and needs and flexible choice.Specifically, in the present embodiment, can by patterning processes in the second electrode lay 203 far from underlay substrate 1
Side formed narrow slit structure grating 204.Obviously, implement needs according to specific, grating 204 also can choose other classes
Type and processing method, as long as can be realized the filtering function of black light.
Preferably, grating 204 is sub-wave length metal grating.The transmission enhancing being had based on sub-wave length metal grating is special
Property, the grating 204 of the present embodiment enhances the transmission of visible light while filtering out black light, improves the first PIN semiconductor
Absorption of the layer 202 for visible light, the effective sensitivity for improving environmental light intensity detection.
As an optional embodiment, in the display base plate of the present embodiment, first detection unit and thin film transistor (TFT)
Orthographic projection on underlay substrate is at least partly overlapped.Due to needing to detect environment light, then first detection unit needs to be arranged
Side of the film crystal far from underlay substrate, and in the present embodiment, both first detection unit and thin film transistor (TFT) are being served as a contrast
Positional relationship on substrate orthographic projection direction is set as at least partly being overlapped, and such setting is so that first detection unit and thin
Spatially there is overlapping in film transistor, realize more efficient utilization to the space on underlay substrate, also leave more
Abundant wiring space can facilitate the structure of display base plate to design.Wherein, phase between first detection unit and thin film transistor (TFT)
The number being mutually overlapped, can according to the needs of different display base plates flexible setting.
Preferably, the orthographic projection of first detection unit and thin film transistor (TFT) on underlay substrate is completely coincident.With reference to
Fig. 3 shows the pixel unit of partial array arrangement.For a pixel unit, oled unit 4 is used as luminescence display part.
And the orthographic projection of first detection unit 2 and thin film transistor (TFT) on underlay substrate is completely coincident, i.e., so that Fig. 3 can be only seen
One detection unit 2.Sky is utilized in the set-up mode of first detection unit 2 and thin film transistor (TFT) to the greatest extent in the present embodiment
Between, the design and production of display base plate can be facilitated.
As an optional embodiment, the display base plate further include: the second inspection in redundant sub-pixels area is set
Unit is surveyed, second detection unit is used to detect the integrated environment light intensity of display base plate.In the present embodiment, second detection unit setting
In redundant sub-pixels area (area Dummy), redundant sub-pixels area is the transition portion that effective display area (area AA) arrives noneffective display area, position
In display base plate peripheral portion, with reference to shown in Fig. 4.Second detection unit is able to detect the integral loop in display base plate local environment
Border light intensity.Correspondingly, processing unit is also used to: during display, according to the detected integrated environment of second detection unit
Light intensity generates second control signal, and the brightness of multiple pixel units is adjusted according to the second control signal.In aforementioned implementation
In example, since in display, first detection unit does not work, if this makes in display, ambient light has greatly changed,
It can a degree of influence display effect.Therefore in the present embodiment, by the setting of second detection unit, in display by the
Two detection units work to realize that the adjusting to environment light compensates, to guarantee display effect.
Further, first detection unit in the structure and previous embodiment of the second detection unit in the present embodiment
Structure is identical.Specifically, second detection unit includes: the third electrode layer being cascading far from underlay substrate direction, the
Two PIN semiconductor layers and the 4th electrode layer.Wherein, the 2nd PIN semiconductor layer is identical as the structure of the first PIN semiconductor layer.The
Four electrode layers and third electrode layer are used to control the switch state of second detection unit, when the 4th electrode layer and third electrode interlayer
When being applied bias, second detection unit work.In some embodiments, second detection unit also may include only for visible light
The grating of transmission, to realize filtering and the visible light antireflective effect of black light.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display device, which includes as above
Display base plate described in any one embodiment.
As applying display base plate described in above-described embodiment, then the display device of the present embodiment, which has, can be directed to often
The problem of a pixel unit carries out the effect for the brightness regulation closed based on environment, is able to solve display device brightness disproportionation is promoted
Display effect.
Based on the same inventive concept, the embodiment of the invention also provides a kind of brightness adjusting methods of display base plate, this is bright
It spends adjusting method and is applied to display base plate described in above-mentioned any one embodiment comprising following steps:
The corresponding environmental light intensity of multiple pixel units is detected respectively by multiple first detection units；
The first control is generated according to the corresponding environmental light intensity of the multiple pixel unit by the processing unit
Signal processed, and adjust according to the first control signal brightness of the multiple pixel unit.
Display base plate based on the above embodiment, and brightness adjusting method through this embodiment is to the display base plate
After display brightness is adjusted, the effect for the brightness regulation closed based on environment can be carried out for each pixel unit, can be solved
Certainly the problem of display device brightness disproportionation, display effect is promoted.
It should be understood by those ordinary skilled in the art that: the discussion of any of the above embodiment is exemplary only, not
It is intended to imply that the scope of the present disclosure (including claim) is limited to these examples；Under thinking of the invention, above embodiments
Or can also be combined between the technical characteristic in different embodiments, step can be realized with random order, and be existed such as
Many other variations of the upper different aspect of the invention, for simplicity, they are not provided in details.
In addition, to simplify explanation and discussing, and in order not to obscure the invention, it can in provided attached drawing
It is connect with showing or can not show with the well known power ground of integrated circuit (IC) chip and other components.Furthermore, it is possible to
Device is shown in block diagram form, to avoid obscuring the invention, and this has also contemplated following facts, i.e., about this
The details of the embodiment of a little block diagram arrangements be height depend on will implementing platform of the invention (that is, these details should
It is completely within the scope of the understanding of those skilled in the art).Elaborating that detail (for example, circuit) is of the invention to describe
In the case where exemplary embodiment, it will be apparent to those skilled in the art that can be in these no details
In the case where or implement the present invention in the case that these details change.Therefore, these descriptions should be considered as explanation
Property rather than it is restrictive.
Although having been incorporated with specific embodiments of the present invention, invention has been described, according to retouching for front
It states, many replacements of these embodiments, modifications and variations will be apparent for those of ordinary skills.Example
Such as, discussed embodiment can be used in other memory architectures (for example, dynamic ram (DRAM)).
The embodiment of the present invention be intended to cover fall into all such replacements within the broad range of appended claims,
Modifications and variations.Therefore, all within the spirits and principles of the present invention, any omission, modification, equivalent replacement, the improvement made
Deng should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of display base plate, comprising: underlay substrate, and the multiple pixel units being set on the underlay substrate；It is special
Sign is, the display base plate further include:
First detection unit, the first detection unit have multiple and are all set in the effective display area of the display base plate；
Each first detection unit is correspondingly arranged at least one the multiple pixel unit, for detecting corresponding institute
State the environmental light intensity of pixel unit；
Processing unit, for generating first control signal according to the corresponding environmental light intensity of the multiple pixel unit,
And the display brightness of the multiple pixel unit is adjusted according to the first control signal.
2. display base plate according to claim 1, which is characterized in that the first detection unit includes: far from the lining
First electrode layer, the first PIN semiconductor layer and the second electrode lay that substrate direction is cascading；The pixel unit packet
It includes: thin film transistor (TFT)；The first electrode layer is connected with the source-drain electrode of the thin film transistor (TFT), the second electrode lay and bias
Control line is connected；The bias voltage control line to the first PIN semiconductor layer for being biased.
3. display base plate according to claim 2, which is characterized in that the first detection unit and the thin film transistor (TFT)
Orthographic projection on the underlay substrate is at least partly overlapped.
4. display base plate according to claim 3, which is characterized in that the first detection unit and the thin film transistor (TFT)
Orthographic projection on the underlay substrate is completely coincident.
5. display base plate according to claim 2, which is characterized in that the first detection unit further include: only for visible
Light transmissive grating；Side of the second electrode lay far from the underlay substrate is arranged in the grating.
6. display base plate according to claim 5, which is characterized in that the grating is sub-wave length metal grating.
7. display base plate according to claim 1, which is characterized in that multiple first detection units and multiple pictures
Plain unit is arranged in a one-to-one correspondence.
8. according to claim 1 to display base plate described in 7 any one, which is characterized in that the display base plate further include: set
The second detection unit in the redundant sub-pixels area of the display base plate is set, the second detection unit is for detecting the display
The integrated environment light intensity of substrate；
The processing unit is also used to: during display, generating second control signal, and root according to the integrated environment light intensity
The brightness of the multiple pixel unit is adjusted according to the second control signal.
9. display base plate according to claim 8, which is characterized in that the second detection unit includes: far from the lining
Third electrode layer, the 2nd PIN semiconductor layer and the 4th electrode layer that substrate direction is cascading；4th electrode layer
Bias is applied with the third electrode interlayer.
10. a kind of display device characterized by comprising display base plate as claimed in any one of claims 1 to 9.
11. a kind of brightness adjusting method of display base plate as claimed in any one of claims 1 to 9, which is characterized in that packet
It includes:
Detect the ring for each stating the corresponding pixel unit of first detection unit respectively by multiple first detection units
Border light intensity；
First control signal is generated according to the environmental light intensity by the processing unit, and according to the first control signal tune
The brightness of whole the multiple pixel unit.
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